Experimental Study on Transmission Characteristics of Coal Dust Explosion in Confined Laneway Space

摘要：

This paper is aimed at researching the propagation principle of the gas & coal dust explosion, for reducing the injury. By gas explosion inducement inducing coal dust explosion following the tunnel in large-scale experiment laneway, test the peak value and arrival time of peak overpressure, effect time of positive overpressure and specific impulse to analyse characteristic propagation features. It shows that statistical peak value of overpressure and statistical specific impulse would be increased first and reduced later with the distance increasing of the explosion source, otherwise arrival time of peak overpressure and effect time of positive overpressure obviously lengthen. The parameters values of the measuring point totally in explosion propagation process decrease continuously following exhausted of explosive, but the variation laws are not entirely consistent.

关键词： confined space coal dust explosion shock wave overpressure specific impulse

作者: CHENG Lei JING Guoxun YANG Shuzhao DUAN Zhenwei

作者单位: State Key Laboratory of Gas Geology and Gas Control the Ministry, Key Laboratory of Coal Mine Disaster Prevention, the Ministry of Education, School of Safety Science & Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 1536-1540

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）